Collaboration, License and Option Agreements	6 Months Ended
Jun. 30, 2025
Collaboration License And Option Agreements [Abstract]
Collaboration, License and Option Agreements	8. Collaboration, License and Option Agreements Global Co-Development and Collaboration Agreement with BeiGene In April 2019, the Company entered into a Global Co-Development and Collaboration agreement (the “BeiGene Collaboration”) with BeiGene, Ltd. and BeiGene Switzerland GmbH (collectively “BeiGene”), for the development, manufacturing and commercialization of evalstotug (BA3071). The BeiGene Collaboration was amended several times between 2019 and 2021 and the Company received a total of $25.0 million in non-refundable payments from BeiGene during that time. In November 2021, the BeiGene Collaboration was terminated, subject to survival of certain provisions, and BeiGene handed back rights to know-how and materials received under the amended BeiGene Collaboration. As a result, the Company is responsible for the global development and commercialization of evalstotug. As consideration for this amendment, the Company agreed to pay BeiGene mid-single digit royalties on sales worldwide and on a limited basis will share in any upfront and milestone payments received through a sublicense of evalstotug. The Company reclassified its then remaining $19.8 million of deferred revenue as a long-term liability which is expected to settle as licensing payments are made to BeiGene in accordance with the resulting amendment. In the event the license is terminated, the liability will be extinguished with no further payment to BeiGene. The Company did not recognize any revenue related to the collaboration agreement with BeiGene during the three and six months ended June 30, 2025 and 2024. The Company had a $19.8 million liability to licensor as of June 30, 2025 and December 31, 2024. License Agreement with Context Therapeutics Inc. In September 2024, the Company entered into a License Agreement (the “Context License Agreement”) with Context Therapeutics Inc. (“Context”). Under the terms of the Context License Agreement, BioAtla granted Context an exclusive, worldwide license to develop, manufacture and commercialize two licensed antibodies, including BA3362 (renamed by Context as CT-202), the Company’s Nectin-4 x CD3 T cell engaging (“TCE”) bispecific antibody (the “License”). The Company also transferred know-how, including any necessary materials Context would need to perform research and development. In exchange for the License, the Company is eligible to receive up to $133.5 million in aggregate payments, including an upfront cash payment and potential development, regulatory and commercial milestones, as well as tiered mid-single digit to low double-digit royalties on future net sales of the products. In connection with the execution of the Context License Agreement, the Company also entered into an agreement with Himalaya Therapeutics SECZ, a related party (See Note 9). A single performance obligation was identified under the Context License Agreement comprised of BioAtla’s promise to transfer the License. Context is responsible for developing BA3362 and for global regulatory filings and commercialization. Context will bear all costs associated with the research, development, and commercialization of any products. In accordance with Topic 606, the Company determined the transaction price of the agreement is limited to the up-front payment received, and excluded the variable consideration of development and sale milestone payments and royalties as they are fully constrained. As part of the Company’s evaluation of the milestone constraints, the Company determined the achievement of such milestones are contingent upon success in future developments, regulatory approvals and commercial activities, which are not within its control and are uncertain at this stage. Variable consideration related to royalties will be recognized when the related sales occur. All variable consideration remains fully constrained as of June 30, 2025. Further, the Company determined that there were no significant financing components, noncash consideration, or amounts that may be refunded to the customer. Management determined that the transfer of the License did not meet any of the criteria for recognizing revenue over time, and therefore revenue was recognized at the point in time that the Context License Agreement was executed and the License was transferred to Context. Additional revenue will be recognized for development milestone payments, the sales milestone payments, and the royalty payments if and when the constraints are resolved. The Company did not recognize any revenue related to the Context License Agreement for the three and six months ended June 30, 2025 and 2024.

Collaboration, License and Option Agreements

6 Months Ended

Jun. 30, 2025

Collaboration License And Option Agreements [Abstract]

Collaboration, License and Option Agreements

8. Collaboration, License and Option Agreements

Global Co-Development and Collaboration Agreement with BeiGene

In April 2019, the Company entered into a Global Co-Development and Collaboration agreement (the “BeiGene Collaboration”) with BeiGene, Ltd. and BeiGene Switzerland GmbH (collectively “BeiGene”), for the development, manufacturing and commercialization of evalstotug (BA3071). The BeiGene Collaboration was amended several times between 2019 and 2021 and the Company received a total of $25.0 million in non-refundable payments from BeiGene during that time.

In November 2021, the BeiGene Collaboration was terminated, subject to survival of certain provisions, and BeiGene handed back rights to know-how and materials received under the amended BeiGene Collaboration. As a result, the Company is responsible for the global development and commercialization of evalstotug. As consideration for this amendment, the Company agreed to pay BeiGene mid-single digit royalties on sales worldwide and on a limited basis will share in any upfront and milestone payments received through a sublicense of evalstotug. The Company reclassified its then remaining $19.8 million of deferred revenue as a

long-term liability which is expected to settle as licensing payments are made to BeiGene in accordance with the resulting amendment. In the event the license is terminated, the liability will be extinguished with no further payment to BeiGene.

The Company did not recognize any revenue related to the collaboration agreement with BeiGene during the three and six months ended June 30, 2025 and 2024. The Company had a $19.8 million liability to licensor as of June 30, 2025 and December 31, 2024.

License Agreement with Context Therapeutics Inc.

In September 2024, the Company entered into a License Agreement (the “Context License Agreement”) with Context Therapeutics Inc. (“Context”). Under the terms of the Context License Agreement, BioAtla granted Context an exclusive, worldwide license to develop, manufacture and commercialize two licensed antibodies, including BA3362 (renamed by Context as CT-202), the Company’s Nectin-4 x CD3 T cell engaging (“TCE”) bispecific antibody (the “License”). The Company also transferred know-how, including any necessary materials Context would need to perform research and development. In exchange for the License, the Company is eligible to receive up to $133.5 million in aggregate payments, including an upfront cash payment and potential development, regulatory and commercial milestones, as well as tiered mid-single digit to low double-digit royalties on future net sales of the products. In connection with the execution of the Context License Agreement, the Company also entered into an agreement with Himalaya Therapeutics SECZ, a related party (See Note 9).

A single performance obligation was identified under the Context License Agreement comprised of BioAtla’s promise to transfer the License. Context is responsible for developing BA3362 and for global regulatory filings and commercialization. Context will bear all costs associated with the research, development, and commercialization of any products.

In accordance with Topic 606, the Company determined the transaction price of the agreement is limited to the up-front payment received, and excluded the variable consideration of development and sale milestone payments and royalties as they are fully constrained. As part of the Company’s evaluation of the milestone constraints, the Company determined the achievement of such milestones are contingent upon success in future developments, regulatory approvals and commercial activities, which are not within its control and are uncertain at this stage. Variable consideration related to royalties will be recognized when the related sales occur. All variable consideration remains fully constrained as of June 30, 2025. Further, the Company determined that there were no significant financing components, noncash consideration, or amounts that may be refunded to the customer.

Management determined that the transfer of the License did not meet any of the criteria for recognizing revenue over time, and therefore revenue was recognized at the point in time that the Context License Agreement was executed and the License was transferred to Context. Additional revenue will be recognized for development milestone payments, the sales milestone payments, and the royalty payments if and when the constraints are resolved.

The Company did not recognize any revenue related to the Context License Agreement for the three and six months ended June 30, 2025 and 2024.